<div style=" height: 100%;background-color: #2F3242;">
  <svg
    width="380px"
    height="500px"
    viewBox="0 0 837 1045"
    version="1.1"
    xmlns="http://www.w3.org/2000/svg"
    xmlns:xlink="http://www.w3.org/1999/xlink"
    xmlns:sketch="http://www.bohemiancoding.com/sketch/ns"
  >
    <g
      id="Page-1"
      stroke="none"
      stroke-width="1"
      fill="none"
      fill-rule="evenodd"
      sketch:type="MSPage"
    >
      <path
        d="M353,9 L626.664028,170 L626.664028,487 L353,642 L79.3359724,487 L79.3359724,170 L353,9 Z"
        id="Polygon-1"
        stroke="#007FB2"
        stroke-width="6"
        sketch:type="MSShapeGroup"
      />
      <path
        d="M78.5,529 L147,569.186414 L147,648.311216 L78.5,687 L10,648.311216 L10,569.186414 L78.5,529 Z"
        id="Polygon-2"
        stroke="#EF4A5B"
        stroke-width="6"
        sketch:type="MSShapeGroup"
      />
      <path
        d="M773,186 L827,217.538705 L827,279.636651 L773,310 L719,279.636651 L719,217.538705 L773,186 Z"
        id="Polygon-3"
        stroke="#795D9C"
        stroke-width="6"
        sketch:type="MSShapeGroup"
      />
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        d="M639,529 L773,607.846761 L773,763.091627 L639,839 L505,763.091627 L505,607.846761 L639,529 Z"
        id="Polygon-4"
        stroke="#F2773F"
        stroke-width="6"
        sketch:type="MSShapeGroup"
      />
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        id="Polygon-5"
        stroke="#36B455"
        stroke-width="6"
        sketch:type="MSShapeGroup"
      />
    </g>
  </svg>
</div>
<div class="message-box">
  <h1>404</h1>
  <p>真是抱歉哦，找不到页面</p>
  <div class="buttons-con">
    <div class="action-link-wrap">
      <a onclick="history.back(-1)" class="link-button link-back-button"
        >返回上一页</a
      >
      <a href="/" class="link-button">返回首页</a>
    </div>
  </div>
</div>

<style>
  svg {
    position: absolute;
    top: 50%;
    left: 50%;
    margin-top: -250px;
    margin-left: -400px;
  }

  .message-box {
    height: 200px;
    width: 380px;
    position: absolute;
    top: 50%;
    left: 50%;
    margin-top: -100px;
    margin-left: 50px;
    color: #fff;
    font-family: Roboto;
    font-weight: 300;
  }

  .message-box h1 {
    font-size: 60px;
    line-height: 46px;
    margin-bottom: 40px;
  }

  .buttons-con .action-link-wrap {
    margin-top: 40px;
  }

  .buttons-con .action-link-wrap a {
    background: #68c950;
    padding: 8px 25px;
    border-radius: 4px;
    color: #fff;
    font-weight: bold;
    font-size: 14px;
    transition: all 0.3s linear;
    cursor: pointer;
    text-decoration: none;
    margin-right: 10px;
  }

  .buttons-con .action-link-wrap a:hover {
    background: #5a5c6c;
    color: #fff;
  }

  #Polygon-1,
  #Polygon-2,
  #Polygon-3,
  #Polygon-4,
  #Polygon-4,
  #Polygon-5 {
    -webkit-animation: float 1s infinite ease-in-out alternate;
    animation: float 1s infinite ease-in-out alternate;
  }

  #Polygon-2 {
    -webkit-animation-delay: 0.2s;
    animation-delay: 0.2s;
  }

  #Polygon-3 {
    -webkit-animation-delay: 0.4s;
    animation-delay: 0.4s;
  }

  #Polygon-4 {
    -webkit-animation-delay: 0.6s;
    animation-delay: 0.6s;
  }

  #Polygon-5 {
    -webkit-animation-delay: 0.8s;
    animation-delay: 0.8s;
  }

  @-webkit-keyframes float {
    100% {
      -webkit-transform: translateY(20px);
      transform: translateY(20px);
    }
  }

  @keyframes float {
    100% {
      -webkit-transform: translateY(20px);
      transform: translateY(20px);
    }
  }

  @media (max-width: 450px) {
    svg {
      position: absolute;
      top: 50%;
      left: 50%;
      margin-top: -250px;
      margin-left: -190px;
    }

    .message-box {
      top: 50%;
      left: 50%;
      margin-top: -100px;
      margin-left: -190px;
      text-align: center;
    }
  }
</style>
